1 7f11104a 2003-12-11 devnull #include <u.h>
 2 7f11104a 2003-12-11 devnull #include <libc.h>
 3 7f11104a 2003-12-11 devnull #include "libString.h"
 4 7f11104a 2003-12-11 devnull 
 5 7f11104a 2003-12-11 devnull #define isspace(c) ((c)==' ' || (c)=='\t' || (c)=='\n')
 6 7f11104a 2003-12-11 devnull 
 7 7f11104a 2003-12-11 devnull /* Get the next field from a String.  The field is delimited by white space,
 8 7f11104a 2003-12-11 devnull  * single or double quotes.
 9 7f11104a 2003-12-11 devnull  */
10 7f11104a 2003-12-11 devnull String *
11 7f11104a 2003-12-11 devnull s_parse(String *from, String *to)
12 7f11104a 2003-12-11 devnull {
13 7f11104a 2003-12-11 devnull 	if (*from->ptr == '\0')
14 7f11104a 2003-12-11 devnull 		return 0;
15 7f11104a 2003-12-11 devnull 	if (to == 0)
16 7f11104a 2003-12-11 devnull 		to = s_new();
17 7f11104a 2003-12-11 devnull 	if (*from->ptr == '\'') {
18 7f11104a 2003-12-11 devnull 		from->ptr++;
19 7f11104a 2003-12-11 devnull 		for (;*from->ptr != '\'' && *from->ptr != '\0'; from->ptr++)
20 7f11104a 2003-12-11 devnull 			s_putc(to, *from->ptr);
21 7f11104a 2003-12-11 devnull 		if (*from->ptr == '\'')	
22 7f11104a 2003-12-11 devnull 			from->ptr++;
23 7f11104a 2003-12-11 devnull 	} else if (*from->ptr == '"') {
24 7f11104a 2003-12-11 devnull 		from->ptr++;
25 7f11104a 2003-12-11 devnull 		for (;*from->ptr != '"' && *from->ptr != '\0'; from->ptr++)
26 7f11104a 2003-12-11 devnull 			s_putc(to, *from->ptr);
27 7f11104a 2003-12-11 devnull 		if (*from->ptr == '"')	
28 7f11104a 2003-12-11 devnull 			from->ptr++;
29 7f11104a 2003-12-11 devnull 	} else {
30 7f11104a 2003-12-11 devnull 		for (;!isspace(*from->ptr) && *from->ptr != '\0'; from->ptr++)
31 7f11104a 2003-12-11 devnull 			s_putc(to, *from->ptr);
32 7f11104a 2003-12-11 devnull 	}
33 7f11104a 2003-12-11 devnull 	s_terminate(to);
34 7f11104a 2003-12-11 devnull 
35 7f11104a 2003-12-11 devnull 	/* crunch trailing white */
36 7f11104a 2003-12-11 devnull 	while(isspace(*from->ptr))
37 7f11104a 2003-12-11 devnull 		from->ptr++;
38 7f11104a 2003-12-11 devnull 
39 7f11104a 2003-12-11 devnull 	return to;
40 7f11104a 2003-12-11 devnull }